I think the Russians had some serious issues working against them in Kherson - a massive river at their back that couldn’t be forged except by pontoon bridges and an opponent who could put rounds on those bridges using intel provided by their superpower backer. So in that sense, the situation that Russia found itself in while trying to defend Kherson is unique in the war, yes.
However, while the terrain was somewhat unique in Kherson due to the Dnieper, there are river-like gaps in the line of communication system throughout occupied Ukraine. Put simply, the Russian army simply can’t go very far beyond where track is laid for trains. This, more than anything, is what is challenging the Russians from advancing at ‘weak points’ in the Ukrainian lines.
You’ve asserted multiple times that Ukraine can’t be strong everywhere and that the Russians just need to mass their forces at one of those locations and push. But, in a lot of places, Ukraine simply doesn’t need to put a particularly strong defending force, because there isn’t the road/rail grid in place to support the advance. The map isn’t a video game where you’re just trying to move units along a front and try to ‘break through.’
This war has really shown the weaknesses in the centralized ‘push’ style logistics that the Soviet and now, Russian, militaries relied on. It’s why control of key hubs in the LoC system has been so crucial - and why the Ukrainians are clinging to Bakhmut so tenaciously.
This point fascinates me and I can’t wait for some post-war analysis of what actually happened there. But my interpretation of it isn’t that the logistics system there ‘failed’ per-se, but rather that the required advances didn’t materialize, and that, combined with the push-style logistics of the system, led to that huge column not moving. It’s not that the trucks broke down or ran out of fuel (although admittedly plenty of that happened on local scales), it’s that without the required advances, those trucks weren’t able to reach their required drop points, unload, and make the return trip. Then the top-heavy command structure of the Russian military kicked in and amplified those challenges by not empowering lower rank officers from making local decisions that could have changed the outcome.
Essentially, the planning failed and the logistics system wasn’t able to adapt to conditions hadn’t been planned explicitly planned for.
I think that the fact that the Russians were largely able to retreat from such a colossal failure at all (and again in Kherson) are actually signs that the Russian military is still a dangerous beast that isn’t quite as defeated as some might wish. From that perspective, I understand Janster’s general fears. But the Russians need to overcome some serious inertia issues both on the battlefield and in how their entire freaking country works in order to turn things around.